In my dealings with the licensing department in setting up this subreddit, it's my understanding that a website cannot use product identity regardless of intention. We can skirt by because we're a discussion forum. I could be wrong, but again, that's my understanding from my discussions with them.

Normally, yes. But there are a number of things that set you apart from most of the self-promotional material we have on the sub.

One, you're asking for money. That wasn't explicitly against the rules, but that's something the mods are re-evaluating.

Two, you're not a redditor with a product, you're a product with a reddit account. That's something that most reddit communities frown upon. It also leads to the third point.

Three, you have no history of community engagement. All you do is pop in on the sub, post your kickstarter stuff, and hop out. Most of the other promotional accounts (podcasts, mostly) comment on other redditor's threads and talk about things that aren't just their product. That's the difference between promotion and spam.

Reddit is not a place for free advertising. It is a place for community building. You're welcome to be a part of the community and also happen to have a product to share, but otherwise you're exploiting the community we've built for your own gain. That's not how this works.

Diplomacy is used to sway opinion. The Sense Motive check translates to if the PC or NPC recognizes that they're being persuaded. If an NPC rolls a higher SM than the PC's Diplomacy, they see the PC's intentions are to persuade them and don't fall for it. That's how I've understood it to work since 3E.

Well the players don't know what they're rolling against. Or sometimes the players roll against each other. If an NPC rolls particularly low on a Diplomacy check and a player rolls high on Sense Motive, the NPC isn't convincing. The Sense Motive check, on either side of the DM screen, functions as the DC.

In 4E it was Bluff/Diplomacy/Insight. In 3E (from which Pathfinder and Starfinder are derived) it was Bluff/Diplomacy/Sense Motive. But they all mean the same thing.

Bluff = Deception

Diplomacy = Persuasion

Sense Motive = Insight

They're all synonyms.

Diplomacy is your ability to sway people to your side. Bluff is to dupe. Sense Motive is to see the intent behind the words. It works exactly the same way as in 5E. Bluff or Diplomacy and an opposed Sense Motive check. You can use the other words if you really want to.

As an FYI you might want to consider a different way to host your files. I imagine the majority of people are going to look at the link and not want to risk it. Also, extra button clicks and downloads are going to dissuade people from checking. I had to cause I'm a mod.

All that being said, I don't have a good alternative. If dropbox or google docs provides a preview before download, that might work out better. Looks like a decent scenario, though. Good luck.